I’m not generally one to get all up in arms about spoilers, but this one was particularly egregious. Is it reasonable to ask that in the interest of general politesse, you tuck your spoilers below the fold for at least the first 24 hours, especially when they’re being pushed my way, rather than me seeking them out?
In practical terms, for FB, that would mean warning me in the main post and then sticking the spoiler in a comment. This would give me a second to make the choice of whether to continue or not. It’s just not that hard.